arch/arm/mach-omap2/board-3430sdp-usb.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-3430sdp-usb.c
   3  *
   4  * This file will contain the board specific details for the
   5  * MENTOR USB OTG and Synopsys EHCI host controllers on OMAP3430
   6  *
   7  * Copyright (C) 2007 Texas Instruments
   8  * Author: Vikram Pandita
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/types.h>
  16 #include <linux/errno.h>
  17 #include <linux/delay.h>
  18 #include <linux/platform_device.h>
  19 #include <asm/io.h>
  20 #include <asm/arch/mux.h>
  21 #include <linux/usb/musb.h>
  22
  23 #include <asm/arch/hardware.h>
  24 #include <asm/arch/usb.h>
  25
  26 #ifdef CONFIG_USB_MUSB_SOC
  27 static struct resource musb_resources[] = {
  28         [0] = {
  29                 .start  = OMAP34XX_HSUSB_OTG_BASE,
  30                 .end    = OMAP34XX_HSUSB_OTG_BASE + SZ_8K,
  31                 .flags  = IORESOURCE_MEM,
  32         },
  33         [1] = { /* general IRQ */
  34                 .start  = INT_243X_HS_USB_MC,
  35                 .flags  = IORESOURCE_IRQ,
  36         },
  37         [2] = { /* DMA IRQ */
  38                 .start  = INT_243X_HS_USB_DMA,
  39                 .flags  = IORESOURCE_IRQ,
  40         },
  41 };
  42
  43 static struct musb_hdrc_platform_data musb_plat = {
  44 #ifdef CONFIG_USB_MUSB_OTG
  45         .mode           = MUSB_OTG,
  46 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
  47         .mode           = MUSB_HOST,
  48 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
  49         .mode           = MUSB_PERIPHERAL,
  50 #endif
  51         .multipoint     = 1,
  52         .clock          = NULL,
  53         .set_clock      = NULL,
  54 };
  55
  56 static u64 musb_dmamask = ~(u32)0;
  57
  58 static struct platform_device musb_device = {
  59         .name           = "musb_hdrc",
  60         .id             = 0,
  61         .dev = {
  62                 .dma_mask               = &musb_dmamask,
  63                 .coherent_dma_mask      = 0xffffffff,
  64                 .platform_data          = &musb_plat,
  65         },
  66         .num_resources  = ARRAY_SIZE(musb_resources),
  67         .resource       = musb_resources,
  68 };
  69 #endif
  70
  71
  72 /* EHCI platform specific data */
  73
  74 #if     defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
  75 static struct resource ehci_resources[] = {
  76         [0] = {
  77                 .start   = OMAP34XX_HSUSB_HOST_BASE + 0x800,
  78                 .end     = OMAP34XX_HSUSB_HOST_BASE + 0x800 + SZ_1K,
  79                 .flags   = IORESOURCE_MEM,
  80         },
  81         [1] = {         /* general IRQ */
  82                 .start   = INT_34XX_EHCI_IRQ,
  83                 .flags   = IORESOURCE_IRQ,
  84         }
  85 };
  86
  87 static u64 ehci_dmamask = ~(u32)0;
  88 static struct platform_device ehci_device = {
  89         .name           = "ehci-omap",
  90         .id             = 0,
  91         .dev = {
  92                 .dma_mask               = &ehci_dmamask,
  93                 .coherent_dma_mask      = 0xffffffff,
  94                 .platform_data          = 0x0,
  95         },
  96         .num_resources  = ARRAY_SIZE(ehci_resources),
  97         .resource       = ehci_resources,
  98 };
  99
 100
 101 /* MUX settings for EHCI pins */
 102 /*
 103  * setup_ehci_io_mux - initialize IO pad mux for USBHOST
 104  */
 105 static void setup_ehci_io_mux(void)
 106 {
 107 #ifdef CONFIG_OMAP_EHCI_PHY_MODE
 108         /* PHY mode of operation for board: 750-2083-001
 109          * ISP1504 connected to Port1 and Port2
 110          * Do Func Mux setting for 12-pin ULPI PHY mode
 111          */
 112
 113         /* Port1 */
 114         omap_cfg_reg(Y9_3430_USB1HS_PHY_STP);
 115         omap_cfg_reg(Y8_3430_USB1HS_PHY_CLK);
 116         omap_cfg_reg(AA14_3430_USB1HS_PHY_DIR);
 117         omap_cfg_reg(AA11_3430_USB1HS_PHY_NXT);
 118         omap_cfg_reg(W13_3430_USB1HS_PHY_DATA0);
 119         omap_cfg_reg(W12_3430_USB1HS_PHY_DATA1);
 120         omap_cfg_reg(W11_3430_USB1HS_PHY_DATA2);
 121         omap_cfg_reg(Y11_3430_USB1HS_PHY_DATA3);
 122         omap_cfg_reg(W9_3430_USB1HS_PHY_DATA4);
 123         omap_cfg_reg(Y12_3430_USB1HS_PHY_DATA5);
 124         omap_cfg_reg(W8_3430_USB1HS_PHY_DATA6);
 125         omap_cfg_reg(Y13_3430_USB1HS_PHY_DATA7);
 126
 127         /* Port2 */
 128         omap_cfg_reg(AA10_3430_USB2HS_PHY_STP);
 129         omap_cfg_reg(AA8_3430_USB2HS_PHY_CLK);
 130         omap_cfg_reg(AA9_3430_USB2HS_PHY_DIR);
 131         omap_cfg_reg(AB11_3430_USB2HS_PHY_NXT);
 132         omap_cfg_reg(AB10_3430_USB2HS_PHY_DATA0);
 133         omap_cfg_reg(AB9_3430_USB2HS_PHY_DATA1);
 134         omap_cfg_reg(W3_3430_USB2HS_PHY_DATA2);
 135         omap_cfg_reg(T4_3430_USB2HS_PHY_DATA3);
 136         omap_cfg_reg(T3_3430_USB2HS_PHY_DATA4);
 137         omap_cfg_reg(R3_3430_USB2HS_PHY_DATA5);
 138         omap_cfg_reg(R4_3430_USB2HS_PHY_DATA6);
 139         omap_cfg_reg(T2_3430_USB2HS_PHY_DATA7);
 140
 141 #else
 142         /* Set Func mux for :
 143          * TLL mode of operation
 144          * 12-pin ULPI SDR TLL mode for Port1/2/3
 145          */
 146
 147         /* Port1 */
 148         omap_cfg_reg(Y9_3430_USB1HS_TLL_STP);
 149         omap_cfg_reg(Y8_3430_USB1HS_TLL_CLK);
 150         omap_cfg_reg(AA14_3430_USB1HS_TLL_DIR);
 151         omap_cfg_reg(AA11_3430_USB1HS_TLL_NXT);
 152         omap_cfg_reg(W13_3430_USB1HS_TLL_DATA0);
 153         omap_cfg_reg(W12_3430_USB1HS_TLL_DATA1);
 154         omap_cfg_reg(W11_3430_USB1HS_TLL_DATA2);
 155         omap_cfg_reg(Y11_3430_USB1HS_TLL_DATA3);
 156         omap_cfg_reg(W9_3430_USB1HS_TLL_DATA4);
 157         omap_cfg_reg(Y12_3430_USB1HS_TLL_DATA5);
 158         omap_cfg_reg(W8_3430_USB1HS_TLL_DATA6);
 159         omap_cfg_reg(Y13_3430_USB1HS_TLL_DATA7);
 160
 161         /* Port2 */
 162         omap_cfg_reg(AA10_3430_USB2HS_TLL_STP);
 163         omap_cfg_reg(AA8_3430_USB2HS_TLL_CLK);
 164         omap_cfg_reg(AA9_3430_USB2HS_TLL_DIR);
 165         omap_cfg_reg(AB11_3430_USB2HS_TLL_NXT);
 166         omap_cfg_reg(AB10_3430_USB2HS_TLL_DATA0);
 167         omap_cfg_reg(AB9_3430_USB2HS_TLL_DATA1);
 168         omap_cfg_reg(W3_3430_USB2HS_TLL_DATA2);
 169         omap_cfg_reg(T4_3430_USB2HS_TLL_DATA3);
 170         omap_cfg_reg(T3_3430_USB2HS_TLL_DATA4);
 171         omap_cfg_reg(R3_3430_USB2HS_TLL_DATA5);
 172         omap_cfg_reg(R4_3430_USB2HS_TLL_DATA6);
 173         omap_cfg_reg(T2_3430_USB2HS_TLL_DATA7);
 174
 175         /* Port3 */
 176         omap_cfg_reg(AB3_3430_USB3HS_TLL_STP);
 177         omap_cfg_reg(AA6_3430_USB3HS_TLL_CLK);
 178         omap_cfg_reg(AA3_3430_USB3HS_TLL_DIR);
 179         omap_cfg_reg(Y3_3430_USB3HS_TLL_NXT);
 180         omap_cfg_reg(AA5_3430_USB3HS_TLL_DATA0);
 181         omap_cfg_reg(Y4_3430_USB3HS_TLL_DATA1);
 182         omap_cfg_reg(Y5_3430_USB3HS_TLL_DATA2);
 183         omap_cfg_reg(W5_3430_USB3HS_TLL_DATA3);
 184         omap_cfg_reg(AB12_3430_USB3HS_TLL_DATA4);
 185         omap_cfg_reg(AB13_3430_USB3HS_TLL_DATA5);
 186         omap_cfg_reg(AA13_3430_USB3HS_TLL_DATA6);
 187         omap_cfg_reg(AA12_3430_USB3HS_TLL_DATA7);
 188 #endif /* CONFIG_OMAP_EHCI_PHY_MODE */
 189
 190         return;
 191 }
 192
 193 #endif /* EHCI specific data */
 194
 195 void __init sdp3430_usb_init(void)
 196 {
 197 #ifdef CONFIG_USB_MUSB_SOC
 198         if (platform_device_register(&musb_device) < 0) {
 199                 printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
 200                 return;
 201         }
 202 #endif
 203
 204 #if     defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 205
 206         /* Setup Pin IO MUX for EHCI */
 207         setup_ehci_io_mux();
 208
 209         if (platform_device_register(&ehci_device) < 0) {
 210                 printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");
 211                 return;
 212         }
 213 #endif
 214
 215 }
 216